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128277874500887 is a prime number
BaseRepresentation
bin11101001010101100000101…
…001001000110010100010111
3121211012020121122001122122202
4131022230011021012110113
5113303201041333012022
61132454013023515115
736006525212403536
oct3512540511062427
9554166548048582
10128277874500887
1137967382a5a791
1212479140758a9b
135676722cc9807
14239697a16231d
15ec6c0660b592
hex74ab05246517

128277874500887 has 2 divisors, whose sum is σ = 128277874500888. Its totient is φ = 128277874500886.

The previous prime is 128277874500817. The next prime is 128277874500901. The reversal of 128277874500887 is 788005478772821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128277874500887 - 216 = 128277874435351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128277874500817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64138937250443 + 64138937250444.

It is an arithmetic number, because the mean of its divisors is an integer number (64138937250444).

Almost surely, 2128277874500887 is an apocalyptic number.

128277874500887 is a deficient number, since it is larger than the sum of its proper divisors (1).

128277874500887 is an equidigital number, since it uses as much as digits as its factorization.

128277874500887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 786759680, while the sum is 74.

The spelling of 128277874500887 in words is "one hundred twenty-eight trillion, two hundred seventy-seven billion, eight hundred seventy-four million, five hundred thousand, eight hundred eighty-seven".